javascript - 从 api 响应和 api 响应下载图像不是 url，它是图像代码

Question

我正在使用此代码来下载图像。请建议我需要添加哪些代码才能从 Angular js 中的 API 响应下载图像。

var lang = locale.getLocale();
var token = AuthToken.get();
Restangular.one("wallpaper").customGET
(undefined, {
    'X-Authorization':'Bearer ' + token,
    'Accept-Language':lang,
    'accept-encoding': 'gzip, deflate, sdch',                           
    'accept':'image/jpeg'
})
.then(function(res){  

    scope.image=res;
    modalInstance = $modal.open(opts);
    $rootScope.reqLoading = false;
});

Answer 1

你可以使用下面的代码-

// download via the download attribute
var a = document.createElement('a');
a.download = 'test.png';
a.href = 'https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQcWzAJb0c3t1waqim9j4-vBqXWHXcgjzV8FRARcxTOp8wxtvBc';
a.click();

var a = document.createElement('a');
a.download = 'test.png';
a.href = 'https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcQcWzAJb0c3t1waqim9j4-vBqXWHXcgjzV8FRARcxTOp8wxtvBc';
a.click();